<<(anyrange,anymultirange)

is left of

Reading PostgreSQL 18.6.

Description

is left of

Left operand: anyrange
Right operand: anymultirange
Result type: bool
Implementing function: range_before_multirange(anyrange,anymultirange)
Operator kind: Binary
Hash join candidate: no
Merge join candidate: no

Usage

<<(anyrange,anymultirange) → bool

English manual definition

Is the range strictly left of the multirange?

int8range(1,10) << '{[100,110)}'::int8multirange → t

Catalog interpretation

The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 36.14 for more information.

Declared operator-family membership

Index AM	Family	Strategy	Purpose	Ordering family
GiST	range_ops	1	search

Related entries

Documentation and source

Source build

Version: 18.6
Build: https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2
Source fingerprint: 555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f

Compare versions

PostgreSQL 13 → 14: added.

--- PostgreSQL 13
+++ PostgreSQL 14
@@ -1 +1,26 @@
-Not recorded in this version
+{
+  "memberships": [
+    {
+      "family": "range_ops",
+      "left_type": "anyrange",
+      "method": "gist",
+      "operator": "<<(anyrange,anymultirange)",
+      "purpose": "search",
+      "right_type": "anymultirange",
+      "sort_family": "",
+      "strategy": "1"
+    }
+  ],
+  "operator": {
+    "commutator": ">>(anymultirange,anyrange)",
+    "function": "range_before_multirange(anyrange,anymultirange)",
+    "hash_join": "f",
+    "kind": "b",
+    "left_type": "anyrange",
+    "merge_join": "f",
+    "negator": "",
+    "result_type": "bool",
+    "right_type": "anymultirange",
+    "symbol": "<<"
+  }
+}

Compares recorded interfaces and attributes. Source fingerprints and build metadata are excluded; an absent sample is not proof of the introduction or removal release.

Related entries

Export JSON · Back to Operators · Recorded in PostgreSQL 14 through 20; the first sample is not necessarily its introduction.